摘要
采用金相显微镜、扫描电镜、维氏硬度计和拉伸试验机,研究了固溶和时效热处理对6013铝合金显微组织、力学性能和氧化膜质量的影响.结果表明:固溶温度越高,或者固溶时间和时效时间越长,铝合金中Mg2 Si析出强化相的尺寸越细小,分布越均匀,铝合金的拉伸性能越高,阳极氧化膜越透亮.先在550℃固溶30 min,然后在170℃时效30 h,6013铝合金可以获得最优的力学性能,其维氏硬度值为131,抗拉强度为388.1 N/mm^2,屈服强度为368.5N/mm^2,伸长率为10.5%,同时还具有优异的氧化效果,阳极氧化膜通透亮,满足3C产品对铝合金外壳力学性能和阳极氧化膜质量的双重要求.
The effects of solution and aging treatment on the microstructure,mechanical properties and oxide film quality of 6013 aluminum alloy were studied by metallographic microscope,scanning electron microscope,vickers hardness tester and tensile test machine.The results show that with the prolongation of solution temperature,solution time and aging time,the size of Mg2Si precipitated strengthening phase in the 6013 aluminum alloy is smaller and the distribution is more uniform.Correspondingly,the tensile properties of 6013 aluminum alloy are higher and the anodic oxide film is brighter.The optimum mechanical properties of 6013 aluminum alloy can be obtained by solid solution at 550℃ for 30 min and ag?ing at 170℃ for 30 h.The vickers hardness value,the tensile strength,the yield strength and the elongation are 131,388.1 N/mm^2,368.5 N/mm^2 and 10.5%,separately.Meanwhile,the 6013 aluminum alloy also has excellent oxidation effect and the anodic oxide film is transparent and clear,which meets the dual requirements of mechanical properties and anodic oxide film quality of aluminum alloy shell for 3C products.
作者
丁小理
邓汝荣
罗杰
王子夜
DING Xiao-li;DENG Ru-rong;LUO Jie;WANG Zi-ye(Guang Dong Hoshion Industrial Aluminum Co.,Ltd.,Zhongshan 528463,China;Guangzhou Science and Technology Vocational and Technical University,Guangzhou 510500,China)
出处
《轻合金加工技术》
CAS
北大核心
2020年第4期47-51,共5页
Light Alloy Fabrication Technology
基金
2016年中山市科技计划项目《汽车轻量化和智能手机用新型高强韧铝合金材料的开发与产业化》(2016A1001)。
